Cultivating disk



Sept. -7 1926.

CULTIWING DISK Filed My 23', 1924 r 3613 @MUQA Patented Sept. 7, 19236.

UNITED- STATES .ARTHUR L. TODD, OF LA GRANGE, ILLINOIS.

GULTIVATING DISK.

Application filed May 23, 1924. `SerialNo. 715,414.

This invention relates to new and useful improvements in agricultural implements and has for its principal object to provide a rotary cultivator disk which is adapted to remove growing weeds in such a manner as to prevent the clogging of the disk.

A further object of the invention is to provide a rotary cultivator disk of the above p mentioned character, which is adapted to be removably supported on the lower end of a cultivator foot in such a manner as to have a portion thereof working below the surface of the earth, the provisionof a rotary cutter disk preventing the weeds or stalks from collectingon the disk.

A still further object of the invention is to provide a rotary cultivator disk of the above mentioned character, which is simple in constructiom inexpensive, strong and durable and furthermore adapted for the purposes for which it is designated.

Other objects and advantages of this invention will become apparent during the course of the following description.

In the accompanying drawing forming a partof this specilication and in which like numerals desigate like parts throughout the same:

Figure 1 is a side elevation of the cultivator disk showing the same supported on the Vlower end of a cultivator foot.

Figure 2 is a vertical sectional view through thel tubular member showing the manner in which the cutter disk is supported on the lower end thereof.

Vin the drawing` wherein for the purpose of illustration is yshown the preferred embodiment of my invention, the numeral 1 designates a cultivator foot which is supported on the cultivator frame 2 in the usual manner.

il shank 3 is attached to the foot 1.

Adapted to be detachably supported on the shank portion 8 is the tubular member 8 and a set screw such as is illustrated at 9 is associated therewith whereby the same may be supported on the'lower end of the disk supporting shank 3. The lower portion of the tubular member 8 is reduced as illustrated at 10 and the reduced portion is provided with the externally threaded end ll Y as clearly illustrated in Figure 2. Adapted to be removably supported on the reduced portion 10 of the tubular member 8 is the hub portion 12 of a suitable cultiva-tor 55 disk 13, the outer edge of which is sharpened as illustrated at 1st and the disk is adapted for rotary movement of the reduced portion 10 of the tubular member.

For the purpose of supporting the rotary disk of the tubular member I provide the lock nut 15 which is threaded on the exten c nally threaded end 11 and engages the under face of the disk 13 while the upper edgev of the hub portion 12 engages the shoulder 16 formed by the reduced portion 10. This construction is clearly illustrated in Figure 2 of the dra-wing.

`With the parts arranged as shown in Figure 1 of the drawing, the cultivator travels in the direction of the arrow and a portion of the disk will be disposed below the surface of the earth and will comein contact with the roots of weeds and stalks and the cutting edge 14 of the disk will sever the same from the ground. The provision ofthe rotary cutter disk further prevents the collection of the roots of stalks andl weeds on the disk and will efiiciently exterminate growing weeds which are in the path of the cutter disk. Heretofore the cultivator shovels now in use are pointed and oftentimes the weeds will not becut by the cutting edges of the pointed cultivator shovels but will be bent downwardly and left growing.

Vith a rotary cultivatorV .disk of the above mentioned character, all of the weeds which come in contact with the disk will be cut and the disk cannot possibly become clogged with the weeds or stalks. y

The simplicity of my device enables the same to be manufactured at a very low cost and the parts are further so arranged as -to enable the same to be readily disassembled whenever desired.

Furthermore a cultivator disk of the above mentioned character, will be strong and durable.

While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted te Without departing from the spirit of the adjacent the terminal of its reduced end and inventionand the scope of `the appended providing a shoulder intermediate its ends, claim. Y a rotary disk having a hub rotatable on the Having thus described the invention, what reduced end, and a nut engaged with the 5 l Claim is Y In combination, a tubular member for disthe hub on saidredueedl end aganet the position over the end of a shank, a set screw i shoulder. f Y passing through the tubular member to In testimony' whereof I aHiX my signature. engage the shank, one yend of said tubular 1G member being reduced and liaving threads ARTHUR L. TODD.

threaded portion of the reduced end to hold 15 

